Boiler.



L. G. EHEA.

BOILER.

APPLICATION FILED AUG. 2, 1910 Patented Oct. 4, 1910.

z anim-SHEET 1.

L. C. RHEA.

BOILER.

APPLIOATION FILED AUG. 2, 1910.

Patented 0013.4, 1910.

QTLL

2 SHEETS-SHEET 2.

ua mw i CE.

' LUTHER c. anna, or COLUMBUS, orne'.l

Borrar..

f satinata fatmraentratenteaoca a, raro.

" To alluwm it mcg/concern:

Be it lmown'thatl LUTHER Enna, a

i citizen of ther United States, residing at Columbus, inthe county of Franklin and VState of Ohio,have invented certain new and useful Improvements vin Boilers, of

l whichthe following is a specification.

l water-heaters usually employing a 1oV circulation of water My that class' of 'gas-.11eme invention vrelates to.

as the' source of heat. fr

kThe objects sought to be attained' by ymy invention are several in number, including the production and maintenance of constant through the heater, the provision of a maximum amount of heating surface `or'the' gas-flame, and generallyv a construction which will raise the temperature ot the water more quickly than has spherical `casings,

inga dame having a s form 'to the shape '0 vention wil appear --specifieatiom4 an f. heretofore been accomplished with such de- /20 `vices,whi ch will do so at a of applied heat.

minimum amount An im ortant object of this invention-is -to provi e a device of the above character 'havinf a structure which iight, cheap,

durable and thoroughly efficient in fulfilling its function. f

A .iurther object or` this invention is to provide a heater of the above character, comprising inner and outer casings having different thicknesses, so that in case the pressure within the heater should rise above the safety limit, the inner casing .will be caved in and the flame of the burner will be extinguished. i

A further object of this invention is to provide a heater of. the above character, comprising inner and outer substantially and a burner disposed within thc'inner casingcapable of producherical shape to conthe interior .of the inner casing.

A further object of this invention is to rovide a device of the above character,` which may be easily separated from each. other, for the or repairing the same.

ormed of few and simple parts,

purpose of" cleaning Other ob'ects and advantages of this infollowing description. In the 'drawin s right is externally screw carried by an upper spherical sections during the course of thel forming a partof this v 'n which like numerals." are-,employedhto .designate like.' parts application mea August '2,1910'. serialv No. 575,125.

throughout the same, Figure 1 is a central vertical section through the device employed .as a water-heater, and Fig. 2 is similar view throu form of device ein'p oyed as asteam generator.` l

The description of the parts of the device; shown in Fig. 1, would also serve as a deh a slightly modified;V

scription for the greater portion of the parts l of the device shown in Fig. numerals will be applied Fivsland 2. 1

n the drawings .wherein illustrated a .preferred embodiment of myjlinvention, the numeral l designates a suitable base upon which is mounted a tubular upright 2, pro- 2, and the same to v`like parts in vided near its center with openings .3 formed therethrough.` The upper end ofthis upthreaded, as shown at 4, for engagement with an internally screw7 threaded tubular boss 5 formed upon the lower portion of a substantially hemispherical section 6. The upper edge of this hem-ispherical section is provided with an outwardly extending annular engagement with'a corresponding flange 8 hernispherical section 9. The sections 6. and together by means of bolts 10, which engage the annular fianges 7 and 8, as shown. It is to be understood that suitable packing may be placed between the flanges 7 and 8, to effect a tight joint. The hernispherical sections "6 and 9 coperateto form an inner spherical casing for the device. This inner spherical casing is jacketed or surrounded by an 'outer spherical casing formed of henri'v l'l and 152, having their adjacent edges providedwith outwardly extending annular flanges `13, which are removably secured together by bolts lll. The

inner hollow spherical casing vis arranged concentric with relation to the outer 'sphere cal casing so as to provide atlnn continuous flange 7, forwater receiving 'chamber of spherical form between said casings.- nally screw threaded', as shownat 15,:for enfv gagement with thescrew threaded 'Wall 1.6 of an opening formed through the' henri` spherical sectionll, A lamping nut 17 is provided `for fen agement] with the boss 5- to securely hold t ejsections t, and'll in'their The bossf' is exter- .proper positions Vwith relation to 'each other."

The hemispherica'l section,9 isprovided near its upper portion with a tubular boss 18, which is externally screw threaded for en gagement with an internally screw threaded boss 19 formed upon the upper portion ,of the hemispherical section 12; The tubular boss 18 carries a clamping nut 2O for engagement with the boss 19. The inner and outer casings are retained in their proper spaced concentric positions, by means of annular flanges 21 formed upon the sections 6 and 9, as shown. f p' Special attention is called to the fact that the walls of the inner spherical casing are much thinner than t-he walls of the outer spherical casing, whereby should the pressure in the Water receiving chamber exceed the safety limit, the inner casing would be caved in, the flame of the burner to be described, extinguished, and the least amount of damage done by such anexplosion.

Arranged within the lower portion of the inner spherical casing, is a gasburner 22, comprising a lower plate 23 having its upper surface concaved, as shown, at 24. This plate is supported, as shown, by the boss 5 and carries screw threaded pins Upon -these pins is mounted a deflector 26, the lower wall of which has substantially the saine curvature as the interioi of the inner casing. The lower wall terminates in a point 27. The delector 26 is secured in its proper position upon pins 25, by means of nuts 28, as shown. The burner 22 isprovided with a pipe 2 9 passing through the central portion of the plate 23, and extending downwardly within the tubular upright 2, for engagement with an air and gas mixer 30. Gas is supplied to the air and gas mixer from a nipple 31 having coiinnunicatio'n` with a supply pipe 32.

Special attention is called to the fact that the burner 22 produces a flame which is .sub-

stantially spherical and therefore conforms to the curvature of and directly engages the greater portion of the innencasing. The

section 11 is provided with an opening having communication with the water receiving chamber supply pipe 34.

In the form of my device as illustrated in Fig. 1, the section 12 is provided With a dis- .andalso, With a water charge opening 35 having communication with the upper portion ofthe water receiving chamber and a discharge pipe 36. This discharge pipemay preferably have suitable communication with a safety valve 37.

In the form of the device, as shown in Fig.l

2,'the upper inner section 9, shown in Fig. 1, is'dispensed with, anda section 38 is employed in connection with the section 6 for forming the inner casing. It is to be under stood that the walls of this inner casing are much thinner than the walls of the outer casing,1 for the purpose specified in connec- -steam from the same. 146 has 4communication with the'water re- .tion withlthe device Fig. 1.

`shown at 41, forsuitable engagement-.with `the tubular boss 19 and clamping nut 20.

The sect-ion 12 of the outer casing, is provided with an opening42 having communicationwitha do'me 43,*Which receives the dry -steam from the heater. This dome hasa steam vtightjoint with the section 12 and is secured thereto, as shownv at-44. A discharge pipe 4 5 has communica-tion with the upperend of the dome 43, for conducting A. .Water tube-gage ceiving chamber,by means of pipes 47, as shown.V This gage' enables the operator to ascertain vthe level4 of the water Iwithin the device illustrated inl Fig.v 2.

In the operation of the water-heater as illustrated in Fig. 1, the fuel is supplied to the burner and such fuel is ignited forming a rsubstantially Aspherical flame,ias shown. The cold wateli` is then supplied to the lower portion of the .water receiving chambery through the pipe 34, and asthis water is heated it rises upwardly and is discharged through `the pipe 36. It is obvious that the temperature of the water discharged from the pipe 36 may be regulated accor/ding to the ainnuntvf heat supplied at the burner.

In the operation of the steam generator', as illustrated in Fig. 2, the water is supplied into the waterv receiving chamber, throu h the pipe 34, and fills the pocket formed y the concave portion 39. It is'to'be understood that any desiredmeans (not shown) maybe employed to regulate the amount of water fed through the pipe 34. The flame from the burner isl approximately spherical anddirectly Lngages the interior of the in- 'ner casing and the bottom wall ofthe portion 39, as shown. The steam generated passes into the dome 43 and is conducted therefrom through th'e'pipe 45. I

I have found that particularly good results can be obtained by connecting the Water-heater, as illustrated in Fig. 1, in series with the steam generator, vas illustrated in Fig. 2, so that the hot Water dis,- charged from the Water-heater will be fed into the lower portion of the steam enerator. However, it is to be understoo that I do not restrict myself to this iuse of the water-heater and steam generator, connected in series, as either may be successfully operated alone. y

I .wish itv understood that the form of my invention herewithshown and'described, is to be taken as a preferred example of the same, and that certain changes in the shape,

CAD

'ber therebetween, a burner arranged within Vouter and inner approximatey spherical casings forming a water receiving chamber sensei size and arangement ci". parts may be resorted to without departing from the spirit o my invention or the scope of the subjoined claims.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a device of the character described, outer and inner substantially spherical cas# ings for forming a water receiving chamthe lower portion of the inner casing, comprising a deflector having a lower side of substantially the 'same curvature as inner casing, for forming a substantially spherical flame, and the wall of the inner casing being formed much thinner than the wall of the outer casing.

. 2. In a device of the character described,

therebetween, the inner casing having the upper portion of its material bent to form a pocket for holding water and having communication with said water receiving chamber, a gas burner arranged within said inner casing, and the wall of the inner casing being formed much thinner than the wall of the outer casine.

3. In a device of the character described, outer and inner substantially spherical. casings for forming a water receiving chamber therebetween, the wall of the inner casing being formed much thinner than the wall ot the outer casing, and a burner disposed withinthe inner casinv.

1I. In a device of the character described, outer and inner substantially spherical casings for forming a water receiving chamber therebetween, and a burner arranged in the lower portion of the inner casing adapted to provide a iiame which is substantially spherical.

In a device of 'the character described, outer and inner substantially spherical casings for forming a thin spherical water receiving chamber therebetween, a burner arranged withinv the lower. portion ont the inner casing and comprising a deflector having a lower side ot substantially the same i curvature as said inner casing, whereby a fiame may be formed which is substantially spherical and directly engages the inner surface of said inner casino'.

6. In a device of the character described, outer and inner concentrically substantially spherical casings for forming a thin spherical water receiving 'chamber therebetween, a gas burner disposed within the lower portion of said inner casing, said gas burner comprising a lower concaved plate and a deflector having its lower side conveXed, means to supply water to the lower portion of said water receiving chamber, and discharge means havingcommunication with the up# per portion of said water receiving chamber.

7 In a device of the character described, outer and inner substantially spherical casings for 'forming a water receiving chamber therebetween, the outer and inner casings being formed of separable substantially semi-spherical sections, and a gas burner disposed within the inner casing.

8. In a device of the character described, outer and inner approximately spherical casings for forming a water receiving chamber therebetween, the inner casing having' the upper portion of its material bent downwardly to form a pocket having communication with said water receiving chamber, and a gas burner arranged within said inner casina. i

9. In a device of the chara' ter described, outer and inner ccncentrically arranged approximately spherical casings' to toi-In a water receiving chamber therebetween, the inner casing having the upper portion oi' its material bent downwardly to form a waterholding pocket having communication with said water receiving chamber, said inner andouter casings being formed of separable sections, and a gas burner arranged within the inner casing.

In testimony whereof I aflix my signature in presence of two witnesses.

LUTHER C. RHEA.

Witnesses:

B. P. FISHBURNE, Fnavns T. SLAGLE. 

